class OpenID::Server::ProtocolError

# File lib/openid/server.rb, line 1394
def initialize(message, text=nil, reference=nil, contact=nil)
  @openid_message = message
  @reference = reference
  @contact = contact
  Util.assert(!message.is_a?(String))
  super(text)
end

# File lib/openid/server.rb, line 1441
def encode_to_kvform
  return to_message().to_kvform()
end

# File lib/openid/server.rb, line 1437
def encode_to_url
  return to_message().to_url(get_return_to())
end

# File lib/openid/server.rb, line 1403
def get_return_to
  if @openid_message.nil?
    return nil
  else
    return @openid_message.get_arg(OPENID_NS, 'return_to')
  end
end

# File lib/openid/server.rb, line 1412
def has_return_to
  return !get_return_to.nil?
end

# File lib/openid/server.rb, line 1445
def to_form_markup
  return to_message().to_form_markup(get_return_to())
end

# File lib/openid/server.rb, line 1449
def to_html
  return Util.auto_submit_html(to_form_markup)
end

# File lib/openid/server.rb, line 1418
def to_message
  namespace = @openid_message.get_openid_namespace()
  reply = Message.new(namespace)
  reply.set_arg(OPENID_NS, 'mode', 'error')
  reply.set_arg(OPENID_NS, 'error', self.to_s)

  if @contact
    reply.set_arg(OPENID_NS, 'contact', @contact.to_s)
  end

  if @reference
    reply.set_arg(OPENID_NS, 'reference', @reference.to_s)
  end

  return reply
end

# File lib/openid/server.rb, line 1458
def which_encoding
  if has_return_to()
    if @openid_message.is_openid2 and
        encode_to_url().length > OPENID1_URL_LIMIT
      return ENCODE_HTML_FORM
    else
      return ENCODE_URL
    end
  end

  if @openid_message.nil?
    return nil
  end

  mode = @openid_message.get_arg(OPENID_NS, 'mode')
  if mode
    if !BROWSER_REQUEST_MODES.member?(mode)
      return ENCODE_KVFORM
    end
  end

  # If your request was so broken that you didn't manage to
  # include an openid.mode, I'm not going to worry too much
  # about returning you something you can't parse.
  return nil
end